dehydratase

dehydratase

[de-hi´drah-tās]

any enzyme of the lyase class that catalyzes the removal of H2O, leaving double bonds (or adding groups to double bonds).

de·hy·dra·tase

(dē-hī'dră-tās),

A subclass of lyases (hydro-lyases) that remove H and OH as H2O from a substrate, leaving a double bond, or add a group to a double bond by the elimination of water from two substances to form a third; synthase is sometimes used when the synthetic aspect of the reaction is emphasized. Some trivial names of enzymes in this subclass bear the generic term hydratase, emphasizing the reverse reaction.

dehydratase

/de·hy·dra·tase/ (de-hi´drah-tās) a common name for a hydro-lyase.

dehydratase

(dē-hī′drə-tās′, -tāz′)

n.

An enzyme that catalyzes the removal of oxygen and hydrogen from organic compounds in the form of water.

de·hy·dra·tase

(dē-hī'dră-tās)

A subclass (EC 4.2.1) of lyases (hydrolyases) that remove H and OH as H2O from a substrate, leaving a double bond, or add a group to a double bond by the elimination of water from two substances to form a third.

dehydratase

any enzyme of the lyase class that catalyzes the removal of H2O, leaving double bonds (or adding groups to double bonds).

21,27] These hematological changes might be attributed to the toxic effect of lead on cell metabolism, interaction with some reactions where calcium is their secondary mediator, and inhibition of some enzymatic activities such as aminolevulinic acid dehydratase, which plays a key role in heme biosynthesis, [28] and other erythrocyte enzymes, for example, GA3PD and G6PD.

Cr(VI) is thought to be involved in termination of enzymes responsible for chlorophyll biosynthesis by degrading d-aminolevulinic acid dehydratase (ALA) thus results in upsurge of ALA and decline in the chlorophyll content (Vajpayee et al.

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